ISO 11639-2010 PDF

Full title and description

St ISO 11639-2010 — Aerospace — Part numbering for hose assemblies. This International Standard specifies a standardized designation and part-numbering scheme intended for aerospace fluid-system hose assemblies to ensure consistent identification across design, manufacture, procurement and maintenance activities.

Abstract

ISO 11639:2010 defines a hose-assembly designation system and a structured part-number format (preferred 15 digits; up to 20 digits when required) with coded fields for stem number, dash number, size, length, fittings, orientation and optional sleeve/feature codes. The standard provides rules for constructing unique, compact and unambiguous part numbers for aerospace hose assemblies.

General information

• Status: Published (International Standard; confirmed in ISO review 2021).
• Publication date: June 2010 (2010-06 / Edition 1, 2010).
• Publisher: International Organization for Standardization (ISO).
• ICS / categories: 49.080 — Aerospace fluid systems and components.
• Edition / version: Edition 1 (2010).
• Number of pages: 8.

(General bibliographic and status details as published by ISO.)

Scope

This standard applies to part-numbering and designation of hose assemblies used in aerospace fluid systems. It prescribes the structure and coding rules for constructing part numbers that uniquely identify hose assemblies, including conventions for basic (stem) numbers, dash numbers, size and length encoding, fittings and orientation, sleeve/option codes, and formatting rules to support unambiguous data exchange and traceability. The scheme is intended for use by designers, manufacturers, suppliers, procurement and maintenance organizations within the aerospace sector.

Key topics and requirements

• Part-number format: preferred maximum of 15 digits, with allowance up to 20 digits where necessary to differentiate configurations.
• Basic (stem) number conventions: recommended limits on stem (drawing/specification) numbers and guidance on dash-number usage for individual configurations.
• Dash numbers: may be numeric, alphabetic or mixed; non-significant (sequential) dash numbers carry no coded meaning.
• Size coding: alphabetic codes map metric DN and common imperial dash sizes to compact size fields.
• Length encoding and tolerances: specific length-code formats for 15‑ and 20‑digit schemes (metric and imperial options) and associated tolerances for different length ranges.
• Fitting and thread codes: coded fields identify fitting types, thread families (metric/imperial) and configuration where required.
• Orientation codes: codes to record coupling orientation/angle where assembly orientation must be defined.
• Sleeving and options: standard option codes for abrasion sleeves, fire sleeves and other common protective/option features.
• Formatting rules: recommendations on prohibited characters, restricted letters, hyphen usage and exclusion of revision letters from part-number fields to preserve consistency.

Typical use and users

ISO 11639:2010 is typically used by aerospace designers and systems engineers, hose and fitting manufacturers, OEM procurement and supply-chain teams, MRO organizations, configuration-management and quality personnel, and IT/PLM/ERP implementers who need a compact, machine- and human-readable part-numbering scheme for hose assemblies in aircraft and spacecraft fluid systems. The standard supports cataloguing, ordering, maintenance traceability and automated inventory systems.

Related standards

ISO 11639 complements other aerospace and fluid-system standards (for hose performance, fittings, connectors and installation practice) and was prepared by ISO/TC 20/SC 10 (Aerospace fluid systems and components). Implementers should align this part-numbering scheme with applicable product performance and fitting standards and with organizational drawing/specification practices.

Keywords

hose assembly, part numbering, designation system, aerospace, fluid system, dash number, length code, fitting code, orientation, sleeve options, ISO 11639:2010.

FAQ

Q: What is this standard?

A: ISO 11639:2010 is an International Standard that defines a part-numbering and designation system specifically for aerospace hose assemblies used in fluid systems.

Q: What does it cover?

A: It covers the structure and coding rules for constructing part numbers (preferred 15-digit format, up to 20 digits), including stem numbers, dash numbers, size and length codes, fittings, orientation and option/sleeve codes, plus formatting rules and tolerances where applicable.

Q: Who typically uses it?

A: Aerospace designers, hose and fitting manufacturers, OEM procurement and logistics teams, MRO and maintenance organizations, configuration managers, and IT/PLM/ERP teams that manage parts data and inventories.

Q: Is it current or superseded?

A: ISO records show ISO 11639:2010 was published in 2010 (Edition 1) and was reviewed and confirmed in 2021; it remains the current published version as of the last ISO review. Users should verify the ISO catalogue or their national standards body for any updates or amendments published after 2021.

Q: Is it part of a series?

A: ISO 11639 is a standalone International Standard focused on part numbering for hose assemblies and was developed under ISO/TC 20/SC 10 (aerospace fluid systems). It is complementary to other ISO and industry standards covering hose performance, fittings and installation; implementers commonly use it alongside those standards.

Q: What are the key keywords?

A: Key keywords include: hose assembly, part-numbering, aerospace, fluid systems, dash number, length code, fitting code, orientation, sleeve options, ISO 11639.